What is the difference between this Martinez and the one who was unknown at 154?why is he so dominate now?

Martinez was turned down by the big-name promotors earlier in his career, which led to him being an "unknown" guy with exceptional skills. I first saw him fight in the Cintron matchup, and I saw immediately from his record (something like 44-2-2 at the time) that he was a talented fighter who just hadn't fought any marquee names up to that point.

He's always been a really good fighter, but hasn't been promoted as such until now. He's just now getting his 'big break,' if you will.

Because he doesn't have to drain himself anymore. He will never go thru that grind of making 154 again unless it's a big money fight. If he could truly make it with no problems, he would be there because that's where the $ is at